Figure 2.

SEM top views of Cu NPs. Cu NPs were grown on PS with a thickness of 1 μm and porosity of 50% to 55% (a, b) and 80% to 85% (c, d) by displacement deposition for 4 s (a, c) and 180 s (b, d).

Bandarenka et al. Nanoscale Research Letters 2012 7:477   doi:10.1186/1556-276X-7-477
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